Commodity and ship market selection marker not cleared

[WKFO]

Observed behaviour

Commodity market selection marker gets stuck at whatever position it was left at if you switch tabs and come back to the commodity market later.

Expected behaviour

Remove marker when tabs are switched.

Steps to reproduce

1. Switch to commodity market tab.
2. Select a commodity.
3. Switch to some other tab (for example station lobby).
4. Switch back to commodity market and scroll around.

My pioneer version (and OS):
28d865b (Win10 x64)

[impaktor]

I wonder if this bug can be replicated in ship market as well?

[WKFO]

Ship market just selects to the first ship in the list when you switch to the tab. I don't know what would happen if the list has ships when you first switch to the tab, and is empty when you switch to somewhere else and back to it.

EDIT: This happens: